WELL · 42-163-33541 · DISTRICT 1

Toalson #1H

Plugged

Frio County · Pearsall (Austin Chalk) field · Horizontal

Toalson #1H (API 42-163-33541) is a plugged horizontal well in Frio County, plugged June 13, 2016, last operated by Alamo Operating Company L. C..

The RRC has issued one drilling permit, issued October 31, 2011, permitted to 6,500 ft.

Completion filings report 3 formation tops, including San Miguel, Anacacho, Austin Chalk.

Its lease has reported 5.43K barrels of oil since December 2011, last reporting in September 2016.

Operator of record

Alamo Operating Company L. C.

San Antonio, TX · P-5 Y, filed Jul 7, 2023 · 89 permits on file · (210) 410-1969

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Alamo Operating Company L. C.
Production reports	Alamo Operating Company, L. C.through May 2013
Latest permit	Alamo Operating Company, L. C.Oct 31, 2011

6,500: total depth, ft
1: permits on file
Oct 31, 2011: last permit issued
Dec 21, 2011: completed
5.43K: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2011 THROUGH Sep 2016

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Dec 21, 2011
Shut in: —
Plugged: Jun 13, 2016

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Toalson O-1-16154	Pearsall (Austin Chalk)	Alamo Operating Company, L. C.	1	5.43K	0	Dec 2011 – Sep 2016

No volumes reported on these leases in the last three years.

Chain of custody

Every operator that reported production on this well's lease, in order.

1Alamo Operating Company, L. C.Dec 2011 → May 2013

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
727225-99	Drill	Alamo Operating Company, L. C.	Oct 28, 2011	Oct 31, 2011	Nov 3, 2011	6,500

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-1-16154	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 656 ft elevation.Download CSV →

Formation	MD ft	Subsea
San Miguel	4,559	-3,903
Anacacho	5,156	-4,500
Austin Chalk	5,449	-4,793

Perforations

Perforated and open-hole intervals.

From	To	Type
6,000	10,046	Open hole

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	3,013	12.25	1,190 S
7	6,000	8.75	305 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Dec 11, 2012	Jan 10, 2012	Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Wellbore filings for 42-163-33541 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-163-33541 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/16333541, documented in the API reference.